code: def __init__(self, ignore_index=-100, **kwargs):
      super().__init__()
  
      self.cnt_loss = nn.MSELoss(**kwargs)
      self.seq_loss = nn.CrossEntropyLoss(ignore_index=ignore_index)
  
file_path: PaddleOCR/ppocr/losses/rec_rfl_loss.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import paddle
  from paddle import nn
  from .basic_loss import CELoss, DistanceLoss
label_desc: Use image node_id 1 to create a new RFLLoss object from inherited base classes: nn with example: obj = RFLLoss(ignore_index)